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Nelenite

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About NeleniteHide

05079690015422419512323.jpg
Joseph A. Nelen
Formula:
(Mn,Fe)16(Si12O30)(OH)14[As3+3O6(OH)3]
In the type material, Fe substitutes for Mn up to 5.8 of the 16 octahedrally coordinated cations.
Colour:
Light to medium Brown
Lustre:
Vitreous, Resinous
Hardness:
5
Specific Gravity:
3.46
Crystal System:
Monoclinic
Name:
Named in 1984 by Pete J. Dunn and Donald R. Peacor in honor of Joseph A. Nelen (28 Aug 1923 - 7 Jun 2005), chemist at the Smithsonian Institution, Washington, D.C., USA, for his contributions contributions "to the chemistry of minerals, in particular his analytical studies of the complex arsenosilicates of manganese which are found at Franklin and Sterling Hill." The material was earlier known as ferroschallerite.
Isostructural with:
Formerly known as ferroschallerite (note: "ferroschallerite" with Mn>Fe is Fe-bearing schallerite).


Classification of NeleniteHide

Approved
First Published:
1984
9.EE.15

9 : SILICATES (Germanates)
E : Phyllosilicates
E : Single tetrahedral nets of 6-membered rings connected by octahedral nets or octahedral bands
72.4.1b.3

72 : PHYLLOSILICATES Two-Dimensional Infinite Sheets with Other Than Six-Membered Rings
4 : Two-Dimensional Infinite Sheets with Other Than Six-Membered Rings with 4-, 6-, and 12-membered rings
17.7.13

17 : Silicates Containing other Anions
7 : Silicates with vanadate, arsenate or antimonate

Physical Properties of NeleniteHide

Vitreous, Resinous
Transparency:
Transparent
Comment:
Vitreous on cleavages, resinous on fractures
Colour:
Light to medium Brown
Streak:
Light brown
Hardness:
Cleavage:
Perfect
Parallel to {0001}
Comment:
Cleavage plates are flat and highly lustrous, and it is this quality and appearance of the cleavage that immediately distinguishes nelenite from the other members of the friedelite group, which have cleavage fragments with slightly or grossly warped and curved surfaces.
Density:
3.46 g/cm3 (Measured)    3.45 g/cm3 (Calculated)

Optical Data of NeleniteHide

Type:
Uniaxial (-)
RI values:
nω = 1.718 nε = 1.700
Max Birefringence:
δ = 0.018
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
High
Pleochroism:
Visible
Comments:
with e = colourless and w = light brown.

Chemical Properties of NeleniteHide

Formula:
(Mn,Fe)16(Si12O30)(OH)14[As3+3O6(OH)3]

In the type material, Fe substitutes for Mn up to 5.8 of the 16 octahedrally coordinated cations.
IMA Formula:
Mn2+16As3+3Si12O36(OH)17
Common Impurities:
Zn,Mg,Ca,H2O

Crystallography of NeleniteHide

Crystal System:
Monoclinic
Cell Parameters:
a = 23.24 Å, b = 13.41 Å, c = 7.38 Å
β = 105.21°
Ratio:
a:b:c = 1.733 : 1 : 0.55
Unit Cell V:
2,219.40 ų (Calculated from Unit Cell)

Type Occurrence of NeleniteHide

Place of Conservation of Type Material:
Holotype material is deposited in the Smithsonian Institution under catalog no. C6219. Co-type samples are in the Smithsonian Institution under catalog no. R7824 and at Harvard University under catalog no. H 92791-a.
Reference:
Dunn, P.J., Peacor, D.R. (1984) Nelenite, a manganese arsenosilicate of the friedelite group, polymorphous with schallerite, from Franklin, New Jersey. Mineralogical Magazine: 48: 271-275.

Synonyms of NeleniteHide

Other Language Names for NeleniteHide

German:Nelenit
Spanish:Nelenita

Relationship of Nelenite to other SpeciesHide

Other Members of this group:
FriedeliteMn2+8Si6O15(OH,Cl)10Mon. 2/m : B2/m
Mcgillite(Mn,Fe)8Si6O15(OH)8Cl2Mon. 2/m : B2/m
Pyrosmalite-(Fe)Fe2+8Si6O15(OH,Cl)10Trig. 3m (3 2/m) : P3m1
Pyrosmalite-(Mn)Mn2+8Si6O15(OH,Cl)10Trig.
SchalleriteMn2+16As3Si12O36(OH)17Trig. 3m : P3m1

Common AssociatesHide

Associated Minerals Based on Photo Data:
8 photos of Nelenite associated with CalciteCaCO3
4 photos of Nelenite associated with Manganocummingtonite☐{Mn2+2}{Mg5}(Si8O22)(OH)2
2 photos of Nelenite associated with QuartzSiO2
2 photos of Nelenite associated with Tirodite
1 photo of Nelenite associated with FrankliniteZn2+Fe3+2O4
1 photo of Nelenite associated with HematiteFe2O3
1 photo of Nelenite associated with RhodoniteMn2+SiO3

Related Minerals - Nickel-Strunz GroupingHide

9.EE.05BementiteMn7Si6O15(OH)8Mon.
9.EE.10BrokenhilliteMn8Si6O15(OH)10Hex. 6mm : P63mc
9.EE.10Pyrosmalite-(Fe)Fe2+8Si6O15(OH,Cl)10Trig. 3m (3 2/m) : P3m1
9.EE.10FriedeliteMn2+8Si6O15(OH,Cl)10Mon. 2/m : B2/m
9.EE.10Pyrosmalite-(Mn)Mn2+8Si6O15(OH,Cl)10Trig.
9.EE.10Mcgillite(Mn,Fe)8Si6O15(OH)8Cl2Mon. 2/m : B2/m
9.EE.15SchalleriteMn2+16As3Si12O36(OH)17Trig. 3m : P3m1
9.EE.20Palygorskite(Mg,Al)5(Si,Al)8O20(OH)2 · 8H2OMon. 2/m : B2/m
9.EE.20TuperssuatsiaiteNa2(Fe3+,Mn2+)3Si8O20(OH)2 · 4H2OMon. 2/m : B2/m
9.EE.20YofortieriteMn5Si8O20(OH)2 · 8-9H2OMon. 2/m : B2/m
9.EE.20WindhoekiteCa2Fe3+2.67[Si8O20](OH)4 · 10H2O Mon. 2/m : B2/m
9.EE.25Falcondoite(Ni,Mg)4Si6O15(OH)2 · 6H2OOrth.
9.EE.25LoughliniteNa2Mg3Si6O16 · 8H2OOrth.
9.EE.25SepioliteMg4(Si6O15)(OH)2 · 6H2OOrth. mmm (2/m 2/m 2/m) : Pnna
9.EE.25Kalifersite(K,Na)5Fe3+7Si20O50(OH)6 · 12H2OTric.
9.EE.30GyroliteNaCa16Si23AlO60(OH)8 · 14H2OTric. 1 : P1
9.EE.30OrlymaniteCa4Mn3Si8O20(OH)6 · 2H2OHex.
9.EE.30TungusiteCa4Fe2Si6O15(OH)6Tric. 1 : P1
9.EE.35Reyerite(Na,K)2Ca14(Si,Al)24O58(OH)8 · 6H2OTrig.
9.EE.35Truscottite(Ca,Mn)14Si24O58(OH)8 · 2H2OTrig.
9.EE.40NatrosiliteNa2Si2O5Mon.
9.EE.45MakatiteNa2Si4O8(OH)2 · 4H2OMon. 2/m : P21/b
9.EE.50VarennesiteNa8Mn2Si10O25(OH,Cl)2 · 12H2OOrth.
9.EE.55RaiteNa4Mn2+3Ti0.25Si8O20(OH)2 · 10H2OOrth. 2 2 2 : C2 2 2
9.EE.60IntersiliteNa6Mn2+Ti[Si10O24(OH)](OH)3 · 4H2OMon.
9.EE.65ShafranovskiteNa3K2(Mn,Fe,Na)4[Si9(O,OH)27](OH)2 · nH2OTrig.
9.EE.65ZakharoviteNa4Mn5Si10O24(OH)6 · 6H2OTrig.
9.EE.70ZeophylliteCa13Si10O28(OH)2F8 · 6H2OTrig. 3 : R3
9.EE.75Minehillite(K,Na)2-3Ca28Zn4Al4Si40O112(OH)16Hex.
9.EE.80Fedorite(Na,K)2-3(Ca4Na3)Si16O38(OH,F)2 · 3.5H2OTric. 1 : P1
9.EE.80Martinite(Na,◻,Ca)12Ca4(Si,S,B)14B2O38(OH,Cl)2F2·4H2OTric. 1 : P1
9.EE.85Lalondeite(Na,Ca)6(Ca,Na)3Si16O38(F,OH)2·3H2OTric. 1 : P1

Related Minerals - Dana Grouping (8th Ed.)Hide

72.4.1b.1FriedeliteMn2+8Si6O15(OH,Cl)10Mon. 2/m : B2/m
72.4.1b.2Mcgillite(Mn,Fe)8Si6O15(OH)8Cl2Mon. 2/m : B2/m

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

17.7.1SuzukiiteBaVSi2O7Orth.
17.7.2FranciscaniteMn2+6(V5+,☐)2(SiO4)2(O,OH)6Hex.
17.7.3Kurumsakite(Zn,Ni,Cu)8Al8V5+2Si5O35 · 27H2O (?)
17.7.4Ardennite-(As)Mn2+4Al4(AlMg)(AsO4)(SiO4)2(Si3O10)(OH)6Orth. mmm (2/m 2/m 2/m)
17.7.5MedaiteMn2+6V5+Si5O18(OH)Mon.
17.7.6JohninnesiteNa2Mn2+9Mg7(OH)8[AsO4]2[Si6O17]2Tric.
17.7.7TiragalloiteMn2+4As5+Si3O12(OH)Mon. 2/m
17.7.8DixeniteCuMn2+14Fe2+(SiO4)2(As5+O4)(As3+O3)5(OH)6Trig.
17.7.9AsbecasiteCa3(Ti,Sn4+)Be2(AsO3)6(SiO4)2Trig. 3m : P3c1
17.7.10McgoverniteMn19Zn3(AsO4)3(AsO3)(SiO4)3(OH)21Trig. 3m (3 2/m)
17.7.11KraissliteZn3(Mn,Mg)25(Fe3+,Al)(As3+O3)2[(Si,As5+)O4]10(OH)16Orth. 2 2 2 : C2 2 21
17.7.12SchalleriteMn2+16As3Si12O36(OH)17Trig. 3m : P3m1
17.7.14KoliciteMn2+7Zn4(AsO4)2(SiO4)2(OH)8Orth. mmm (2/m 2/m 2/m) : Cmca
17.7.15YeatmaniteZn6Mn2+9Sb5+2(SiO4)4O12Tric.
17.7.16WelshiteCa4Mg9Sb3O4[Si6Be3AlFe2O36]Tric. 1 : P1
17.7.17Katoptrite(Mn2+,Mg)13(Al,Fe3+)4Sb5+2(SiO4)2O20Mon. 2/m : B2/m
17.7.18ParweliteMn10Sb2As2Si2O24Mon. m : Bb
17.7.19LångbaniteMn2+4Mn3+9Sb5+O16(SiO4)2Trig. 3m : P3m1
17.7.20ChapmaniteFe3+2Sb3+(Si2O5)O3(OH)Mon. m : Bm
17.7.21Cervandonite-(Ce)(Ce,Nd,La)(Fe3+,Fe2+,Ti,Al)3O2(Si2O7)(As3+O3)(OH)Trig. 3m : R3m

Fluorescence of NeleniteHide

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for NeleniteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Dunn, Pete J.; Peacor, Donald R.; Simmons, William B. (1984) Lennilenapeite, the Mg-analogue of stilpnomelane, and chemical data on other stilpnomelane species from Franklin, New Jersey. Canadian Mineralogist: 22: 259-263.
Dunn, P.J., Peacor, D.R. (1984) Nelenite, a manganese arsenosilicate of the friedelite group, polymorphous with schallerite, from Franklin, New Jersey. Mineralogical Magazine: 48: 271-275.
Dunn, P.J., Fleischer, M., Langley, R.H., Shigley, J.E., Zilczer, J.A. (1985) New mineral names. American Mineralogist: 70: 871-881.
Dunn, P.J. (1995) Franklin and Sterling Hill New Jersey: the world's most magnificent mineral deposits, Part 4: 480-481.

Internet Links for NeleniteHide

Localities for NeleniteHide

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
China
 
  • Inner Mongolia
    • Ulanhad League (Chifeng Prefecture)
      • Hexigten Banner (Keshiketeng Co.)
http://rruff.info/Nelenite
Romania
 
  • Suceava
    • Suceava district
      • Iacobeni (Jakobeny; Jacobeny; Jakabfalva)
http://minerals-of-the-carpathians.eu
USA (TL)
 
  • New Jersey
    • Sussex Co.
      • Franklin Mining District
        • Franklin
          • Franklin Mine
Dunn, P.J., et al: Canadian Mineralogist:22:259-263 (1984); Dunn, P.J. and Peacor, D.R.: Mineralogical Magazine:48:271-275 (1984); Dunn(1995):Pt4:480-481.
  • Virginia
    • Montgomery Co.
Minerals of Virginia 1990 by R. V. Dietrich
 
Mineral and/or Locality  
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